110325 Alex Schuster wrote:
> Philip Webb writes:
>> In  /var/log/  there is a file  wtmp , which is  24 MB  & owned by  utmp
>> . It is in binary format & is updated when I reboot.
>> Can anyone explain what it's for & whether it cb safely deleted ?
> It tracks logins, you can use the 'last' command to show its contents.
> I'm pretty sure it's safe to delete it,
> but you should create it as empty file afterwards
> -- 'touch /var/log/wtmp' -- ,
> otherwise the system will not make use of it again.
> If wou want to get the space, I suggest compressing the file,
> it will be much much smaller then:
> 
>   bzip2 -v /var/log/wtmp
>   touch /var/log/wtmp
> 
> Also see the man pages for wtmp and last.

Thanks & to the other respondent.  I'll decide how to handle it.

-- 
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SUPPORT     ___________//___,   Philip Webb
ELECTRIC   /] [] [] [] [] []|   Cities Centre, University of Toronto
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